Comment: I think coinflation jumps through some unneccessary math hoops

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In reply to comment: Price that menu using 1963 coins (see in situ)

I think coinflation jumps through some unneccessary math hoops

but they are otherwise a good tool.

In short, what you suggest is exactly what I did, though I used the original whole-dollar definition instead of the bastardized 1877 standard for subsidiary coinage.

I also used the year to date average price of silver, not just the current price as coinflation does. Since we're not comparing an exact known instant in history to an exact time today, yearly, or near yearly averages are probably more representative than instant spot.